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function main()
--[[ Enforce Request Method ]]
EnforceRequestMethod()
--[[ Enforce Number of Parameters/ARGS ]]
EnforceNumOfArgs()
--[[ Enforce Parameter Names ]]
EnforceArgsNames()
--[[ Enforce Parameter Lengths ]]
EnforceArgsLength()
--[[ Enforce Parameter Character Class ]]
EnforceArgCharClass()
m.log(4, "Ending Profile Enforcer Script")
return nil
end
--[[ Begin Enforcement Functions ]]
function EnforceArgCharClass()
local Args = {}
Args = m.getvars("ARGS", {"none"})
local EnforceArgCharClassEmail = m.getvar("RESOURCE.enforce_charclass_email")
local EnforceArgCharClassDigits = m.getvar("RESOURCE.enforce_charclass_digits")
local EnforceArgCharClassUrl = m.getvar("RESOURCE.enforce_charclass_url")
local EnforceArgCharClassPath = m.getvar("RESOURCE.enforce_charclass_path")
local EnforceArgCharClassFlag = m.getvar("RESOURCE.enforce_charclass_flag")
local EnforceArgCharClassAlpha = m.getvar("RESOURCE.enforce_charclass_alphas")
local EnforceArgCharClassAlphaNumeric = m.getvar("RESOURCE.enforce_charclass_alphanumeric")
local EnforceArgCharClassSafeText = m.getvar("RESOURCE.enforce_charclass_safetext")
for k,v in pairs(Args) do
name = v["name"];
value = v["value"];
m.log(4, "CharClass Check - Arg Name: " ..name.. " and Value: " ..value.. ".");
--[[ Check for Digits Character Class ]]
if (EnforceArgCharClassDigits) then
local CheckArgCharClassDigits = string.find(EnforceArgCharClassDigits, name)
if (CheckArgCharClassDigits) then
m.log(4, "Arg Name: " .. name .. " in Digits Enforcement list.")
if string.match(value, "^%d+$") then
m.log(4, "Parameter " ..name.. " payload matches digit class.")
else
m.log(4, "Parameter " ..name.. " payload does not match digit class.")
m.setvar("TX." ..name.. "_digits_violation", value)
m.setvar("TX.digits_violation_name", name)
end
end
end
--[[ Check for Email Character Class ]]
if (EnforceArgCharClassEmail) then
local CheckArgCharClassEmail = string.find(EnforceArgCharClassEmail, name)
if (CheckArgCharClassEmail) then
m.log(4, "Arg Name: " .. name .. " in Email Enforcement list.")
if string.match(value, "^[A-Za-z0-9%.%%%+%-]+@[A-Za-z0-9%.%%%+%-]+%.%w%w%w?%w?$") then
m.log(4, "Parameter " ..name.. " payload matches email class.")
else
m.log(4, "Parameter " ..name.. " payload does not match email class.")
m.setvar("TX." ..name.. "_email_violation", value)
m.setvar("TX.email_violation_name", name)
end
end
end
--[[ Check for URL Class ]]
if (EnforceArgCharClassUrl) then
local CheckArgCharClassUrl = string.find(EnforceArgCharClassUrl, name)
if (CheckArgCharClassUrl) then
m.log(4, "Arg Name: " .. name .. " in Url Enforcement list.")
if string.match(value, "[A-Za-z]+://[A-Za-z0-9-_]+%.[A-Za-z0-9-_.]+/?") then
m.log(4, "Parameter " ..name.. " payload matches url class.")
else
m.log(4, "Parameter " ..name.. " payload does not match url class.")
m.setvar("TX." ..name.. "_url_violation", value)
m.setvar("TX.url_violation_name", name)
end
end
end
--[[ Check for Path Class ]]
if (EnforceArgCharClassPath) then
local CheckArgCharClassPath = string.find(EnforceArgCharClassPath, name)
if (CheckArgCharClassPath) then
m.log(4, "Arg Name: " .. name .. " in Path Enforcement list.")
if string.match(value, "[-a-zA-Z0-9/._]*/[-a-zA-Z0-9/._]*") then
m.log(4, "Parameter " ..name.. " payload matches path class.")
else
m.log(4, "Parameter " ..name.. " payload does not match path class.")
m.setvar("TX." ..name.. "_path_violation", value)
m.setvar("TX.path_violation_name", name)
end
end
end
--[[ Check for Flag Parameter Class ]]
if (EnforceArgCharClassFlag) then
local CheckArgCharClassFlag = string.find(EnforceArgCharClassFlag, name)
if (CheckArgCharClassFlag) then
m.log(4, "Arg Name: " .. name .. " in Flag Enforcement list.")
if string.match(value, "^$") then
m.log(4, "Parameter " ..name.. " payload matches flag class.")
else
m.log(4, "Parameter " ..name.. " payload does not match flag class.")
m.setvar("TX." ..name.. "_flag_violation", value)
m.setvar("TX.flag_violation_name", name)
end
end
end
--[[ Check for Alpha/Letters Character Class ]]
if (EnforceArgCharClassAlpha) then
local CheckArgCharClassAlpha = string.find(EnforceArgCharClassAlpha, name)
if (CheckArgCharClassAlpha) then
m.log(4, "Arg Name: " .. name .. " in Alpha Enforcement list.")
if string.match(value, "^%a+$") then
m.log(4, "Parameter " ..name.. " payload matches alpha class.")
else
m.log(4, "Parameter " ..name.. " payload does not match alpha class.")
m.setvar("TX." ..name.. "_alpha_violation", value)
m.setvar("TX.alpha_violation_name", name)
end
end
end
--[[ Check for AlphaNumeric Character Class ]]
if (EnforceArgCharClassAlphaNumeric) then
local CheckArgCharClassAlphaNumeric = string.find(EnforceArgCharClassAlphaNumeric, name)
if (CheckArgCharClassAlphaNumeric) then
m.log(4, "Arg Name: " .. name .. " in AlphaNumeric Enforcement list.")
if string.match(value, "^%w+$") then
m.log(4, "Parameter " ..name.. " payload matches alphanumeric class.")
else
m.log(4, "Parameter " ..name.. " payload does not match alphanumeric class.")
m.setvar("TX." ..name.. "_alphanumeric_violation", value)
m.setvar("TX.alphanumeric_violation_name", name)
end
end
end
--[[ Check for SafeText Character Class ]]
if (EnforceArgCharClassSafeText) then
local CheckArgCharClassSafeText = string.find(EnforceArgCharClassSafeText, name)
if (CheckArgCharClassSafeText) then
m.log(4, "Arg Name: " .. name .. " in SafeText Enforcement list.")
if string.match(value, "^[a-zA-Z0-9%s_%.%-]+$") then
m.log(4, "Parameter " ..name.. " payload matches safetext class.")
else
m.log(4, "Parameter " ..name.. " payload does not match safetext class.")
m.setvar("TX." ..name.. "_safetext_violation", value)
m.setvar("TX.safetext_violation_name", name)
end
end
end
end
end
function EnforceArgsLength()
local ArgsLength = {}
ArgsLength = m.getvars("ARGS", {"none", "length"})
for k,v in pairs(ArgsLength) do
name = v["name"];
value = v["value"];
value = tonumber(value);
m.log(4, "Arg Name: " ..name.. " and Length: " ..value.. ".");
local MinArgLength = tonumber(m.getvar("RESOURCE." .. name .. "_length_min", {"none"}))
local MaxArgLength = tonumber(m.getvar("RESOURCE." .. name .. "_length_max", {"none"}))
if ((value > MinArgLength) and (value < MaxArgLength)) then
m.log(4, "Arg Name: " .. name .. " with Length: :" ..value.. " is within normal range.")
elseif value < MinArgLength then
m.log(4, "Arg Name: " .. name .. " Length " ..value.. " is below the normal range.")
m.setvar("TX." .. name .. "_min_length_violation", value)
m.setvar("TX.MinArgLength", MinArgLength)
m.setvar("TX.MinArgLengthName", name)
elseif value > MaxArgLength then
m.log(4, "Arg Name: " .. name .. " Length " ..value.. " is above the normal range.")
m.setvar("TX." .. name .. "_max_length_violation", value)
m.setvar("TX.MaxArgLength", MaxArgLength)
m.setvar("TX.MaxArgLengthName", name)
end
end
end
function EnforceArgsNames()
local ArgsNames = {}
ArgsNames = m.getvars("ARGS_NAMES", {"none"})
local EnforceArgsNames = m.getvar("RESOURCE.enforce_args_names")
for k,v in pairs(ArgsNames) do
name = v["name"];
value = v["value"];
m.log(4, "ArgsName: " ..value.. ".");
local CheckArgsNames = string.find(EnforceArgsNames, value)
if (CheckArgsNames) then
m.log(4, "Arg Name: " .. value .. " is valid.")
else
m.log(4, "Args Name: " .. value .. " is not valid.")
m.setvar("TX.args_names_violation", name)
end
end
end
function EnforceRequestMethod()
local RequestMethod = m.getvar("REQUEST_METHOD", {"none"})
local EnforceRequestMethods = m.getvar("RESOURCE.enforce_request_methods")
local EnforceMethods = string.find(EnforceRequestMethods, RequestMethod)
if (EnforceMethods) then
m.log(4, "Request Method " .. RequestMethod .. " already in Enforcement List.")
else
m.log(4, "Request Method: " .. RequestMethod .. " profile violation.")
m.setvar("TX.request_method_violation", "1")
end
end
function EnforceNumOfArgs()
local ARGS = {}
local ARGS = m.getvars("ARGS", {"none"})
local NumOfArgs = tonumber(#ARGS)
local MinNumOfArgs = tonumber(m.getvar("RESOURCE.MinNumOfArgs", {"none"}))
local MaxNumOfArgs = tonumber(m.getvar("RESOURCE.MaxNumOfArgs", {"none"}))
local EnforceNumOfArgs = m.getvar("RESOURCE.enforce_num_of_args")
if ((NumOfArgs > MinNumOfArgs) and (NumOfArgs < MaxNumOfArgs)) then
m.log(4, "Number of ARGS is within normal range.")
elseif NumOfArgs < MinNumOfArgs then
m.log(4, "Number of ARGS is less than MinNumOfArgs: " .. MinNumOfArgs .. ".")
m.setvar("TX.MIN_NUM_ARGS_VIOLATION", "1")
m.setvar("TX.NUM_OF_ARGS", NumOfArgs)
elseif NumOfArgs > MaxNumOfArgs then
m.log(4, "Number of ARGS is more than MxxiaxinNumOfArgs: " .. MaxNumOfArgs .. ".")
m.setvar("TX.MAX_NUM_ARGS_VIOLATION", "1")
m.setvar("TX.NUM_OF_ARGS", NumOfArgs)
end
end
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